87551070 has 16 divisors (see below), whose sum is σ = 210122640. Its totient is φ = 23346944.

The previous prime is 87551027. The next prime is 87551077. The reversal of 87551070 is 7015578.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87551077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1459155 + ... + 1459214.

It is an arithmetic number, because the mean of its divisors is an integer number (13132665).

Almost surely, 2^87551070 is an apocalyptic number.

87551070 is an abundant number, since it is smaller than the sum of its proper divisors (122571570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87551070 is a wasteful number, since it uses less digits than its factorization.

87551070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918379.

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 87551070 is about 9356.8728750582. The cubic root of 87551070 is about 444.0383559917.

The spelling of 87551070 in words is "eighty-seven million, five hundred fifty-one thousand, seventy".